when a person shows up to offer unsolicited and unneeded assistance and advice.
overly and annoyingly helpful.
sometimes you just want to be alone then out of nowhere you get karstettered
by chris nelson October 20, 2004
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A person usually orginating from a "backwoods" community ie. "the boonies".

Tend to kill, cook, and eat animals/random rodents that most of humanity would deam inedible.
"That karstetter jumped out of the woods onto route 1 chasing its still live beaver dinner"
by Karstetter john September 10, 2009
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